www.worldcat.org is a free online catalog of books and other media. It covers several countries.
It is possible to check on the progress of distribution of The Knowledge around the world.
During a review on 2015/09/21, I found the book listed in:
Audiobook on CD
Print Book London
Print Book New York
Languages: English, German, Japanese, Spanish
If anyone reading this is interested in helping to encourage acquisition of the book for your local library, please ask your librarian to update the WorldCat catalog when they add the book to their collection.